Humidifier housing



FIG. 1 is an upper right perspective view of the humidifier housing;

FIG. 2 is an upper left perspective view of the humidifier housing;

FIG. 3 is a front elevation view of the humidifier housing;

FIG. 4 is a left side elevation view of the humidifier housing;

FIG. 5 is a right side elevation view of the humidifier housing;

FIG. 6 is a top plan view of the humidifier housing; and,

FIG. 7 is a bottom plan view of the humidifier housing.

The features shown in broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a humidifier housing, as shown and described. 